/* ================================================================
   T&T Plumbing — animations.css
   Keyframes · Reveal Classes · Transitions
================================================================ */

/* ================================================================
   KEYFRAMES
================================================================ */

/* Floating particles */
@keyframes float-p {
  0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.25; }
  50%       { transform: translateY(-28px) rotate(180deg); opacity: 0.55; }
}

/* Bounce arrow */
@keyframes bounce-down {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* CTA Pulse Ring */
@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(192,57,43,0.6), 0 4px 15px rgba(192,57,43,0.35); }
  70%  { box-shadow: 0 0 0 16px rgba(192,57,43,0), 0 4px 15px rgba(192,57,43,0.35); }
  100% { box-shadow: 0 0 0 0 rgba(192,57,43,0), 0 4px 15px rgba(192,57,43,0.35); }
}

.cta-pulse { animation: pulse-ring 2.4s ease-in-out infinite; }

/* WhatsApp button pulse */
@keyframes whatsapp-pulse {
  0%, 100% { box-shadow: 0 4px 15px rgba(37,211,102,0.4); }
  50%       { box-shadow: 0 0 0 12px rgba(37,211,102,0), 0 4px 25px rgba(37,211,102,0.5); }
}

/* Background gradient animation */
@keyframes gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Gradient line (process timeline) */
@keyframes gradient-line {
  0%   { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* Marquee scroll */
@keyframes marquee-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Sticky buttons slide up */
@keyframes slide-up-btns {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* Form shake (invalid) */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-8px); }
  40%       { transform: translateX(8px); }
  60%       { transform: translateX(-5px); }
  80%       { transform: translateX(5px); }
}

/* Scale in */
@keyframes scale-in {
  from { transform: scale(0.85); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}

/* Fade in up */
@keyframes fade-in-up {
  from { transform: translateY(40px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* Fade in left */
@keyframes fade-in-left {
  from { transform: translateX(-60px); opacity: 0; }
  to   { transform: translateX(0);     opacity: 1; }
}

/* Fade in right */
@keyframes fade-in-right {
  from { transform: translateX(60px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* Spin (loading) */
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Success checkmark */
@keyframes check-pop {
  0%   { transform: scale(0) rotate(-30deg); opacity: 0; }
  70%  { transform: scale(1.2) rotate(5deg); opacity: 1; }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

/* Draw underline */
@keyframes draw-line {
  from { width: 0; }
  to   { width: 100%; }
}

/* Glow */
@keyframes glow {
  0%, 100% { box-shadow: 0 0 8px rgba(192,57,43,0.3); }
  50%       { box-shadow: 0 0 24px rgba(192,57,43,0.6), 0 0 40px rgba(192,57,43,0.2); }
}

/* ================================================================
   SCROLL REVEAL CLASSES
   Applied by IntersectionObserver — before/after visible state
================================================================ */

/* Base states (hidden) */
.reveal-up,
.reveal-left,
.reveal-right,
.reveal-scale,
.reveal-fade {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
  will-change: transform, opacity;
}

.reveal-up    { transform: translateY(60px); }
.reveal-left  { transform: translateX(-70px); }
.reveal-right { transform: translateX(70px); }
.reveal-scale { transform: scale(0.82); }
.reveal-fade  { transform: none; }

/* Visible state */
.reveal-up.is-visible,
.reveal-left.is-visible,
.reveal-right.is-visible,
.reveal-scale.is-visible,
.reveal-fade.is-visible {
  opacity: 1;
  transform: none;
}

/* Stagger delays */
.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }
.stagger-5 { transition-delay: 0.40s; }
.stagger-6 { transition-delay: 0.48s; }

/* ================================================================
   HERO ENTRANCE ANIMATIONS
   Fired immediately on page load (no scroll observer)
================================================================ */
.hero-badge-anim {
  animation: fade-in-up 0.7s ease both;
  animation-delay: 0.2s;
}

.hero-title-anim {
  animation: fade-in-up 0.8s ease both;
  animation-delay: 0.4s;
}

.hero-sub-anim {
  animation: fade-in-up 0.8s ease both;
  animation-delay: 0.6s;
}

.hero-actions-anim {
  animation: fade-in-up 0.8s ease both;
  animation-delay: 0.8s;
}

.hero-stats-anim {
  animation: fade-in-right 0.9s ease both;
  animation-delay: 0.6s;
}

/* ================================================================
   HOVER MICRO-INTERACTIONS
================================================================ */

/* Lift on hover */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* Scale on hover */
.hover-scale {
  transition: transform 0.3s ease;
}
.hover-scale:hover { transform: scale(1.03); }

/* ================================================================
   TRANSITION UTILITIES
================================================================ */
.transition       { transition: var(--tr); }
.transition-slow  { transition: var(--tr-slow); }
.transition-spring { transition: var(--tr-spring); }

/* ================================================================
   PAGE TRANSITION OVERLAY
================================================================ */
.page-overlay {
  position: fixed;
  inset: 0;
  background: var(--primary);
  z-index: 9998;
  transform: translateY(-100%);
  pointer-events: none;
}

/* ================================================================
   COUNTER ANIMATION TARGET
================================================================ */
[data-counter] {
  font-variant-numeric: tabular-nums;
}

/* ================================================================
   GALLERY ITEM REVEAL
================================================================ */
.gallery-item {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.gallery-item.visible {
  opacity: 1;
  transform: scale(1);
}

/* ================================================================
   FORM SUCCESS ANIMATION
================================================================ */
.form-success i {
  animation: check-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

/* ================================================================
   NAV LINK HOVER UNDERLINE (extra keyframe for draw effect)
================================================================ */
.nav-link::after {
  animation: none;
}

/* ================================================================
   SECTION HEADING HIGHLIGHT
================================================================ */
.accent-underline {
  position: relative;
  display: inline;
}

.accent-underline::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  width: 0;
  transition: width 0.6s ease 0.3s;
}

.is-visible .accent-underline::after,
.accent-underline.is-visible::after {
  width: 100%;
}

/* ================================================================
   SPINNING LOADER
================================================================ */
.spinner {
  width: 22px;
  height: 22px;
  border: 2.5px solid rgba(255,255,255,0.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

/* ================================================================
   RESPONSIVE — Reduce motion
================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}